Magazine



J G BOLEN ALARM GUN DEW-MAGAZINE.

No. 8,439. Patented Oct. 21, 1851.

UNITED STATES PATENT OFFICE.

JOHN G. BOLEN, OF NEW YORK, N. Y.

BURGLAR ALARM.

Specification of Letters Patent No. 8,439, dated October 21, 1851.

v In the constructlon of said machine. I

group together several firing chambers orv some equivalent thereto, bypiercing a metallic slab with perforations which form V so many distinctcalibers, as shown in the annexed drawing; in which Figure 1, exhibits aside elevation, Fig. 2, an end dopand Fig. 3, a horizontal cut sectionView, Fig. 4, exhibits a longitudinal view of the fuse required forigniting the charges contained.

Similar letters of reference indicate the same parts throughout saiddrawings.

The mechanism of said instrument is constructed as follows, see Fig. 1.The magazine A with its perforations or calibers 6. Near the center, andback corner of A is vertically fixed the standard B, horizontallythrough the top of which, in a corresponding mortise is suspended upon afulcrum pin (Z, the hammer lever C, the hammer ends of which is made tofall vertically upon the nipple or cone D, which is fixed verticallyinto said magazine connecting with the first left hand barrel; whilethe. lever end of said hammer extends from said fulcrum to the righthand back corner of said magazine, having its end fork shaped, it beingseparated by a horizontal slot, into which the Vertical sear ordischarging lever E is arranged to play in and out freely, said lever isprovided with cross pins, 6, fixed horizontally in, and projecting from0pposite sides of the same, under which pins the prongs of the hammerlever is held, when the machine is in a cocked position. The bottom endof the lever E, plays upon a fulcrum pin in the vertical stud F. Theupper end of said lever is provided with a clevis or ring f, into whichthe discharging line is secured in the usual manner. Between thestandards B and F, and on a line with, and under the lever end of thehammer C, is horizontally fixed the mainspring G, its lower limit beingfixed to the upper surface of A, by the foot of standard B, and itsupper one bearing against the under side of the lever C. Horizontallythrough the back corner of the magazine and on a line with the breechend of the barrels a. small perforation H, is made through and throughso as to range on a line with the prime holes 6/, of said calibers,which lead into said perforations or fuse chamber from whence theycontinue through and out at the back side of the magazine, in a directline with said loading chambers, where they are termed vent holes asdesignated by the letter h. The object of piercing the fuse inconnection with the vent holes is to prevent the fuse from becoming theabutment to the explosive force of the charge through the priming hole,which, without said perforations and vent holes, the chambers would beliable to discharge simultaneously. In this fuse chamber I insert myfuse, which is a simple paper cylinder charged with the ordinary slowmatch composition, fitting closely and rammed firmly in the same afterwhich before loading the barrels) said fuse is pierced through from thepriming holes 9, to the opposite vent hole It in each barrel (see Figs.8 and 4,) by means of a priming wire, in order that the powder from eachcharge may communicate with the fuse, which may be so compounded as toignite the charges consecutively as required. The perforations throughsaid fuse are indicated by the letter m. The fuse being thus insertedand pierced as above described I nextproceed to lute up closely theouter orifices of the vent holes, also the muzzle end of the fusechamber with bees wax, putty, or any other water proof luting. I thenproceed to charge the barrels of the magazine with blank cartridge, orplain powder and wadding, and then fix a percussion cap upon the nippleD, and in case the machine is to be placed where it is exposed-tomoisture, I secure the muzzles of my barrels and lower rim of the capwith the same water proof luting said magazine is then placed in anyconvenient locality in the apartment or place to be guarded. A line,rod, or wire, is now attached to the ring 7", from which it is extendedand attached to some leading line &c. which is connected with doors,windows, &c. or other places of ingress, or accessible passages, in saidmanner as to become deffected or strained by the movement of, or passingin the same, which deflection or straining of said lines &c. mustnecessarlly draw back the upper end of the dis charging lever E, andthereby draw 01f, or disengage the cross pins e, from the forks of saidlevers, the hammer end of which falls (propelled by the force of thespring G,)" upon the cap upon the cone D, by Which means the magazine isfired, as before described.

Although there is but little apparent novelty in this machine, it isobviously a useful instrument for the purposes designed. It being cheapcompact, and efle'cti've, occupying but little room, and easily managed.

It is not intended as a destructive Weapon,

but simply as an alarm, and detection of thieves, burglars, &c.

My claims in the above described invention, I shall confine to a groupor train of barrels, or firing chambers in combination With the piercedfuse, and bent holes, constructed, prepared, and operated essentially inthe manner, and for the purposes above set forth and described.

JNO. G. BOLEN.

Witnesses:

LIVINGSTON K. MILLER, CORNELIUS BOGERT.

